Home / 31,181.20-43,044.22-19,866.22

Finding the Fourth Proportional to 31,181.20, 43,044.22 and 19,866.22

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Solution

The fourth proportional to 31,181.20, 43,044.22 and 19,866.22 is: 27,424.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,181.20 : 43,044.22 = 19,866.22 : x
  2. Step 2: Convert to fraction form
    31,181.20/43,044.22 = 19,866.22/x
  3. Step 3: Cross multiply
    31,181.20x = 43,044.22 × 19,866.22
  4. Step 4: Simplify right side
    31,181.20x = 855,125,944.25
  5. Step 5: Solve for x
    x = 855,125,944.25/31,181.20
  6. Step 6: Final answer
    x = 27,424.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.